ES412214A1 - Preparation of 3,4,5,6,7,8-hexahydrocoumarin - Google Patents

Preparation of 3,4,5,6,7,8-hexahydrocoumarin

Info

Publication number
ES412214A1
ES412214A1 ES412214A ES412214A ES412214A1 ES 412214 A1 ES412214 A1 ES 412214A1 ES 412214 A ES412214 A ES 412214A ES 412214 A ES412214 A ES 412214A ES 412214 A1 ES412214 A1 ES 412214A1
Authority
ES
Spain
Prior art keywords
hexahydrocoumarin
preparation
carboxyethyl
cyclohexanone
beta
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES412214A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Publication of ES412214A1 publication Critical patent/ES412214A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/74—Benzo[b]pyrans, hydrogenated in the carbocyclic ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Pyrane Compounds (AREA)

Abstract

A process for preparing 3,4,5,6,7,8-hexahydrocoumarin is disclosed, wherein 2-( beta -carboxyethyl)-cyclohexanone is heated in the presence of catalytic amount of a strong acid having a atmospheric boiling point above 200 DEG C at a temperature of 140 DEG -245 DEG C and a pressure of 6-200 mm Hg.
ES412214A 1972-03-02 1973-03-01 Preparation of 3,4,5,6,7,8-hexahydrocoumarin Expired ES412214A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7202745,A NL174464C (en) 1972-03-02 1972-03-02 PREPARATION OF 3,4,5,6,7,8-HEXAHYDROCUMARINE.

Publications (1)

Publication Number Publication Date
ES412214A1 true ES412214A1 (en) 1976-01-01

Family

ID=19815494

Family Applications (1)

Application Number Title Priority Date Filing Date
ES412214A Expired ES412214A1 (en) 1972-03-02 1973-03-01 Preparation of 3,4,5,6,7,8-hexahydrocoumarin

Country Status (12)

Country Link
US (1) US3925422A (en)
JP (1) JPS596876B2 (en)
BE (1) BE796204A (en)
CA (1) CA1001637A (en)
CH (1) CH575408A5 (en)
DE (1) DE2309536C2 (en)
ES (1) ES412214A1 (en)
FR (1) FR2174269B1 (en)
GB (1) GB1349638A (en)
IT (1) IT982867B (en)
NL (1) NL174464C (en)
SE (1) SE377123B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69013868T2 (en) * 1989-12-21 1995-05-24 Sumitomo Chemical Co Catalytic preparation of coumarin compounds.
KR930002338A (en) * 1991-07-31 1993-02-23 모리 히데오 Method for preparing coumarin and its derivatives
EP2550928B1 (en) * 2011-07-25 2017-03-01 Ivoclar Vivadent AG Dental oven with a drying sensor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2204008A (en) * 1938-04-01 1940-06-11 Dow Chemical Co Manufacture of coumarin
US3442910A (en) * 1967-06-22 1969-05-06 Eastman Kodak Co Preparation of hydrocoumarin,coumarin and alkyl substituted derivatives

Also Published As

Publication number Publication date
USB336243I5 (en) 1975-01-28
FR2174269B1 (en) 1978-02-10
NL7202745A (en) 1973-09-04
US3925422A (en) 1975-12-09
JPS596876B2 (en) 1984-02-15
DE2309536C2 (en) 1982-01-28
SE377123B (en) 1975-06-23
DE2309536A1 (en) 1973-09-06
IT982867B (en) 1974-10-21
JPS4899175A (en) 1973-12-15
CA1001637A (en) 1976-12-14
NL174464C (en) 1984-06-18
NL174464B (en) 1984-01-16
FR2174269A1 (en) 1973-10-12
BE796204A (en) 1973-09-03
GB1349638A (en) 1974-04-10
CH575408A5 (en) 1976-05-14

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